802.1aq Shortest Path Bridging Design and Evolution

802.1aq Shortest Path Bridging Design and Evolution

Einband:
Kartonierter Einband
EAN:
9781118148662
Untertitel:
The Architect's Perspective
Genre:
Elektrotechnik
Autor:
David Allan, Nigel Bragg
Herausgeber:
Turner Publishing Company
Auflage:
1. Auflage
Anzahl Seiten:
224
Erscheinungsdatum:
13.03.2012
ISBN:
978-1-118-14866-2

One of the most significant enhancements in Ethernet s history, 802. 1aq Shortest Path Bridging (SPB) greatly simplifies the creation and configuration of carrier, enterprise, and cloud computing networks.

Informationen zum Autor David Allan is a Distinguished Engineer at Ericsson and a former Distinguished Member of Technical Staff at Nortel. He is the holder of some thirty patents in telecommunications, including several for the co-invention of technology fundamental to 802.1aq and 802.1Qay. In addition, he co-chairs the End-to-End Architecture Committee of the Broadband Forum, which recently honored him as a Distinguished Fellow. Nigel Bragg has spent twenty years in the telecommunications industry, thirteen of them with Nortel--where he was elected a Nortel Fellow in 2008--before joining Ciena where he works on packet transport and Carrier Ethernet technologies. He holds over thirty patents and is a co-inventor of PBT and PLSB, the pre-standard predecessors of PBB-TE and SPBM. Klappentext Shortest Path Bridging is the most recent of this series of evolutionary steps, and is arguably one of the 3 or 4 most significant enhancements in Ethernet's history. Until SPB, Ethernet had retained its original control mechanisms, and these are now distinctly behind the state of the art in their properties. SPB refreshes this component of Ethernet, by taking the existing data path technology practically unaltered, and marrying it to a significant extension of the state of the art in distributed control planes, link state routing.The book both explains both the "what" and the "why" of the standard. The intent is to provide a sense of the relative simplicity of 802.1aq, in terms of the small number of moving parts required to achieve what it does, and why those choices were made. It goes into what were elective decisions and what decisions were dictated by the design goals. It does this by using a multipart approach to the book. The first is a "what it is" description, intended to provide an overview of SPB. The second is separated out, and uses a narrative form to describe the design process and decisions that led to SPB, in order to provide further context in understanding the first part. The book is rounded out with applications and potential futures for the technology to suggest where it could go. Zusammenfassung Shortest Path Bridging is the most recent of this series of evolutionary steps, and is arguably one of the 3 or 4 most significant enhancements in Ethernet's history. Until SPB, Ethernet had retained its original control mechanisms, and these are now distinctly behind the state of the art in their properties. SPB refreshes this component of Ethernet, by taking the existing data path technology practically unaltered, and marrying it to a significant extension of the state of the art in distributed control planes, link state routing.The book both explains both the "what" and the "why" of the standard. The intent is to provide a sense of the relative simplicity of 802.1aq, in terms of the small number of moving parts required to achieve what it does, and why those choices were made. It goes into what were elective decisions and what decisions were dictated by the design goals. It does this by using a multipart approach to the book. The first is a "what it is" description, intended to provide an overview of SPB. The second is separated out, and uses a narrative form to describe the design process and decisions that led to SPB, in order to provide further context in understanding the first part. The book is rounded out with applications and potential futures for the technology to suggest where it could go. Inhaltsverzeichnis Figures viiAcknowledgments ixIntroduction xiAbbreviations xvii1. IEEE 802.1aq in a Nutshell: Antecedents and Technology 12. Why SPB Looks as It Does 363. Why the SPB Control Plane Looks as It Does 744. Practical Deployment Considerations 1305. Applications of SPB 1506. Futures 158Conclusion 186References 188Index 190...

Autorentext
David Allan is a Distinguished Engineer at Ericsson and a former Distinguished Member of Technical Staff at Nortel. He is the holder of some thirty patents in telecommunications, including several for the co-invention of technology fundamental to 802.1aq and 802.1Qay. In addition, he co-chairs the End-to-End Architecture Committee of the Broadband Forum, which recently honored him as a Distinguished Fellow. Nigel Bragg has spent twenty years in the telecommunications industry, thirteen of them with Nortel--where he was elected a Nortel Fellow in 2008--before joining Ciena where he works on packet transport and Carrier Ethernet technologies. He holds over thirty patents and is a co-inventor of PBT and PLSB, the pre-standard predecessors of PBB-TE and SPBM.

Klappentext
Shortest Path Bridging is the most recent of this series of evolutionary steps, and is arguably one of the 3 or 4 most significant enhancements in Ethernet's history. Until SPB, Ethernet had retained its original control mechanisms, and these are now distinctly behind the state of the art in their properties. SPB refreshes this component of Ethernet, by taking the existing data path technology practically unaltered, and marrying it to a significant extension of the state of the art in distributed control planes, link state routing. The book both explains both the "what" and the "why" of the standard. The intent is to provide a sense of the relative simplicity of 802.1aq, in terms of the small number of moving parts required to achieve what it does, and why those choices were made. It goes into what were elective decisions and what decisions were dictated by the design goals. It does this by using a multipart approach to the book. The first is a "what it is" description, intended to provide an overview of SPB. The second is separated out, and uses a narrative form to describe the design process and decisions that led to SPB, in order to provide further context in understanding the first part. The book is rounded out with applications and potential futures for the technology to suggest where it could go.

Inhalt
Figures vii Acknowledgments ix Introduction xi Abbreviations xvii 1. IEEE 802.1aq in a Nutshell: Antecedents and Technology 1 2. Why SPB Looks as It Does 36 3. Why the SPB Control Plane Looks as It Does 74 4. Practical Deployment Considerations 130 5. Applications of SPB 150 6. Futures 158 Conclusion 186 References 188 Index 190


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